1 files changed, 55 insertions, 0 deletions
diff --git a/modules/templates/helper_test.go b/modules/templates/helper_test.go
new file mode 100644
index 0000000000..e2997cb853
--- /dev/null
+++ b/modules/templates/helper_test.go
@@ -0,0 +1,55 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package templates
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSubjectBodySeparator(t *testing.T) {
+	test := func(input, subject, body string) {
+		loc := mailSubjectSplit.FindIndex([]byte(input))
+		if loc == nil {
+			assert.Empty(t, subject, "no subject found, but one expected")
+			assert.Equal(t, body, input)
+		} else {
+			assert.Equal(t, subject, string(input[0:loc[0]]))
+			assert.Equal(t, body, string(input[loc[1]:]))
+		}
+	}
+
+	test("Simple\n---------------\nCase",
+		"Simple\n",
+		"\nCase")
+	test("Only\nBody",
+		"",
+		"Only\nBody")
+	test("Minimal\n---\nseparator",
+		"Minimal\n",
+		"\nseparator")
+	test("False --- separator",
+		"",
+		"False --- separator")
+	test("False\n--- separator",
+		"",
+		"False\n--- separator")
+	test("False ---\nseparator",
+		"",
+		"False ---\nseparator")
+	test("With extra spaces\n-----   \t   \nBody",
+		"With extra spaces\n",
+		"\nBody")
+	test("With leading spaces\n   -------\nOnly body",
+		"",
+		"With leading spaces\n   -------\nOnly body")
+	test("Multiple\n---\n-------\n---\nSeparators",
+		"Multiple\n",
+		"\n-------\n---\nSeparators")
+	test("Insuficient\n--\nSeparators",
+		"",
+		"Insuficient\n--\nSeparators")
+}